x86: ia32: set access based on linker regions
x86: ia32: set access based on linker regions

This will set program text and rodata as read-only even in
non-XIP systems.

Signed-off-by: Andrew Boie <aab045b28152628be6af0e556050d0381fd0a34d@intel.com>

GiulianoFranchetto/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,finikorg/zephyr,Vudentz/zephyr,kraj/zephyr,aceofall/zephyr-iotos,rsalveti/zephyr,kraj/zephyr,GiulianoFranchetto/zephyr,galak/zephyr,nashif/zephyr,aceofall/zephyr-iotos,explora26/zephyr,punitvara/zephyr,fbsder/zephyr,explora26/zephyr,Vudentz/zephyr,finikorg/zephyr,punitvara/zephyr,runchip/zephyr-cc3220,runchip/zephyr-cc3220,ldts/zephyr,galak/zephyr,finikorg/zephyr,kraj/zephyr,fbsder/zephyr,zephyriot/zephyr,punitvara/zephyr,explora26/zephyr,runchip/zephyr-cc3220,mbolivar/zephyr,explora26/zephyr,galak/zephyr,mbolivar/zephyr,kraj/zephyr,punitvara/zephyr,zephyriot/zephyr,galak/zephyr,Vudentz/zephyr,ldts/zephyr,zephyrproject-rtos/zephyr,mbolivar/zephyr,ldts/zephyr,ldts/zephyr,nashif/zephyr,mbolivar/zephyr,zephyriot/zephyr,ldts/zephyr,finikorg/zephyr,zephyriot/zephyr,GiulianoFranchetto/zephyr,rsalveti/zephyr,runchip/zephyr-cc3220,zephyrproject-rtos/zephyr,GiulianoFranchetto/zephyr,GiulianoFranchetto/zephyr,aceofall/zephyr-iotos,mbolivar/zephyr,rsalveti/zephyr,zephyrproject-rtos/zephyr,explora26/zephyr,zephyrproject-rtos/zephyr,fbsder/zephyr,aceofall/zephyr-iotos,rsalveti/zephyr,Vudentz/zephyr,nashif/zephyr,nashif/zephyr,finikorg/zephyr,rsalveti/zephyr,runchip/zephyr-cc3220,fbsder/zephyr,fbsder/zephyr,aceofall/zephyr-iotos,nashif/zephyr,Vudentz/zephyr,zephyriot/zephyr,kraj/zephyr,galak/zephyr